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1Title:  Technical progress report: Pressurized water reactor program (December 2, 1955 to January 12, 1956) Add
 Summary:  This 1955 report provides a technical update on Westinghouse's work with pressurized water reactor development in the context of the Shippingport Atomic Power Station project. In addition to Westinghouse's role in the design and construction of early naval nuclear propulsion plants such as the S1W and S2W (Nautilus prototype and shipboard plants) and the S5W reactor, Westinghouse was the primary contractor for design and construction of the civilian Shippingport Atomic Power Station plant. The report describes Westinghouse's progress (and work with other vendors) in the design and fabrication of reactor core and primary and secondary system components for the Shippingport plant. Section I-A-7 provides information, including photographs, on the installation of the "nuclear portion of the power plant" (11). 
 Source:  http://www.osti.gov/bridge 
 Date:  circa 1956 
 Subject(s):  Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Text 
 Format:  PDF 
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2Title:  A1W under construction at the Idaho National Laboratory Add
 Summary:  The A1W prototype, under construction at the Idaho National Laboratory. Heat-dissipating spray ponds used by the S1W prototype are visible in the foreground. A1W was a two reactor, one steam plant/shaft prototype plant, parallel to one of the Enterprise's four propulsion plants. Construction of the A1W prototype began in the spring of 1956; first criticality for the first of its two reactors was achieved in October 1958. As with the S1W plant and the Nautilus, the design and construction of the A1W prototype slightly led that of the USS Enterprise. 
 Source:  http://www.inl.gov/proving-the-principle/chapter_10.pdf 
 Reference:  Hewlett, Richard G., and Francis Duncan. Nuclear Navy, 1946-1962. Chicago: University of Chicago Press, 1974, pages 280-281 and 317. 
 Date:  circa 1956 
 Subject(s):  A1W | Naval Reactors 
 Type:  Image 
 Format:  PNG 
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3Title:  The Expended Core Facility (ECF) under construction at the Idaho National Laboratory Add
 Summary:  The Expended Core Facility under construction at the Idaho National Laboratory. The S1W building is visible in the background. The ECF was designed to support the processing of spent fuel cores starting with the initial core of the USS Nautilus, which was removed from the vessel in early 1957. Inside the ECF, cores are moved from one water pit workstation to another; its size was expanded from an initial 340 feet to over 1,000 feet in length. 
 Source:  http://www.inl.gov/proving-the-principle/chapter_10.pdf 
 Reference:  Stacy, Susan M. Proving the Principle: A History of the Idaho National Engineering and Environmental Laboratory, 1949-1999. Idaho Falls, Idaho: Idaho Operations Office of the Dept. of Energy, 2000, pages 86-89. 
 Date:  circa 1956 
 Subject(s):  Expended Core Facility | Naval Reactors 
 Type:  Image 
 Format:  PNG 
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